Attachment for steam-boilers.



W. L. BALDWEN. ATTACHMENT FOR STEAM BOILERS, APPLIQIATION FILED FEB-8,1915.

1 1 88, 1 39 Patented June 20, 1916.

WITNESSES I/VVE/VTDR Wiley L. Baldwin A TTOR/VEYS THE COLUMBIA PLANOGXIAPH 00-, \VASHlNUTiIN, n. c-

WILEY LEGENE BALDWIN, OF DAVTSON, GEORGIA.

ATTACHMENT FOR STEAM-BOILERS.

Specification of Letters Patent.

Patented June 2Q, 1916.

Application filed. February 8, 1915. Serial No. 6,929.

To all whom it may concern:

Be it known that I, WILEY L. BALDWIN, a citizen of the United States, and a resident of Dawson, in the county of Terrell and State of Georgia, have invented a new and Improved Attachment for Steam-Boilers, of which the following is a full, clear, and exact description.

My invention relates to an attachment for steam boilers for the treatment of the feed water, so that scale-forming matter will be precipitated and collected before reaching the boiler.

Objects of my invention are to provide an attachment for the indicated purpose, which may be readily fitted to boilers of standard makes without modifying the boiler or its setting; to provide an attachment which, for its major portion, will be subjected to the heat of the boiler furnace to so heat the feed water as to induce a precipitation and settling of scale-producing matter, before the feed water enters the boiler; and to provide an attachment of simple form having a settling chamber for the sludge and so arranged as to facilitate the thorough blowing off of said chamber for the ejection of the sludge.

()ther objects and advantages will appear from the following description.

Reference is to be had to the accompanying drawings in which the figure is a partly sectional side elevation of my attachment applied to a steam boiler and its setting.

In constructing and applying a practical embodiment of my invention in accordance with the illustrated example, a feed water supply pipe 10 is connected with the boiler A through the medium of a heating and settling chamber designated by the numeral 11. The chamber 11 is formed from a length of pipe or tube of much greater ca pacity than the supply pipe 10. The connection with the supply pipe 10 may be through a cap 12 suitably secured to the flange 13 with which the chamber 11 is provided at its outer end. The connection of the chamber 11 with the boiler may be effected through a short pipe 14 having a flange 15 suitably secured to a flange 16 on the upper end of the chamber 11, the said pipe 14 being received in a boss or nipple 14* on the boiler A. In the example shown the boiler has a fire wall 13, a flue wall C at the rear end of the boiler, and an intermediate or back wall D at the back of the fire wall B. The boiler A is shown as resting on a bracket E on the wall D.

The tube forming the chamber 11 is substantially horizontal at its outer end and extends through the wall C, while the inner end curves upwardly and is located in the chamber between the walls 0 and D. It will be seen that the major portion of the tube 11 is inclosed by the boiler setting and will be subject to the heat from the boiler furnace, being disposed in the path of the hot products passing over the wall D and ipwardly in front of the wall O to the boiler 1 116.

By the described arrangement the major portion of the tube 11 will be effectively heated to heat the feed water. largement of the chamber formed by the pipe 11 prevents a rapid, direct flow of the feed water from the supply pipe 10, and the thorough heating of the feed water in the chamber 11, together with the interruption 1n the direct flow, results in the precipitation and settling of the scale-forming matter, and the like, contained in the water, the lower horizontal portion of the pipe 11 constituting a settling chamber.

To remove the sediment settling in the chamber 11, a blow-01f pipe 17 having any suitable flue 18 is connected with the outer end of the settling chamber, preferably by extending the blow-off pipe through a suitable opening in the cap 12 adjacent to the supply pipe 10. The curved form of the tube forming the chamber 11 facilitates the dislodgment and ejection of the sediment. lvloreover, the curved form of the pipe results in a very simple construction affording ample space for the heating of the water and the settling of the scale-forming matter, and adapts the device to be readily fitted to a boiler and its settings without any material modification thereof.

I find by practical tests that the use of the above described attachment on a steam boiler, serves to remove scale already accumulated in the boiler.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In combination with a steam boiler, the herein described attachment for the treatment of feed water to remove scale producing matter therefrom before the water enters the boiler, said attachment consisting of a length of tube extending 7 through the boiler setting and connected at its inner end with the boiler, the tube being curved vertically at its inner portion, said tube being in a single length presenting a smooth continuous inner surface in the curved and'non-curved portions, a cap closing the outer end of the tube, a feed water supply pipe connected with the outer end of the said tube and of smaller capacity than the latter, said feed water pipe extending through said cap, the lower end of the said tube being approximately horizontal V and constituting a settlingchamber, the inp 7 Copies of this patentmey be obtained for zontal portion adapted to eXtend through the flue Wall of the furnace, and a gradually upward curving portion adapted for connection with the boiler by a materially constricted passage, said passage disposed in a coupling between the boiler and said curved portion, said curved portion receiving and guiding the precipitate to the settling chamber, said chamber being remote from influence of hot furnace gases, a detachable cap on the outer end of the settling chamber, a feed water pipe passing through said cap and discharging into the horizontal portion of the tube adjacent the upper inner surface of the same, and a blow-off pipe passing through said cap and leading from the settling chamber at its lowest inner level.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

V WILEY LEGENE BALDXVIN.

Witnesses R. W. JENNINGS, C. D. Coons.

five cents each, by addressing the Commissioner of Patents. Washington, D. G." 

